Flip it over and show us the *bottom*! HB's often have the edge protrude slightly giving sort of a squarish hourglass indentation on the bottom---on old one it may have worn off.
Also check under the horn down near the base to see if there are any markings there, like a serial number or weight stamp.
Is the surface under the heel smooth or does it still show evidence of the big hammer?
Thomas
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Thomas
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